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3 years ago

10

What is the value of

1 answer:

miv72 [106K]3 years ago

4 0

Answer:

-538.67 (2 d.p)

Step-by-step explanation:

4x +1612 = x - 4

4x -x = -1616

x = (-1616)÷3= -538.67 (2d.p)

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solong [7]

There are 76.5% of leaves left on the tree

1-.15=.85

.85-(.1*.85)=.765

76.5%

6 0

3 years ago

TV screen is 20 inches long. If the diagonal measures 25 inches in width. How long is the width of the TV.

erik [133]

Answer:

The Pythagorean Theorem states that the square of the hypotenuse (diagonal) of any right triangle is equal to the same of the squares of the two legs. For this situation the television screen is cut by a diagonal of 25 inches and the length of the side is 20 inches.

Step-by-step explanation:

8 0

3 years ago

What is the completely factored form of f(x)=x3−7x2+2x+4?

sladkih [1.3K]

Answer:

The Factored form is

$f(x)=(x-1)(x-3-\sqrt{13} )(x-3+\sqrt{13} )$

Step-by-step explanation:

Given;

$f(x)=x^{3} -7\times x^{2} +2x+4$

To solve for x we factorize the right side of

$f(x)=x^{3} -7\times x^{2} +2x+4$

Let Substitute x for various values to check whether remainder is zero.

$f(1)=1^{3} -7\times 1^{2} +2\times 1+4$

Hence $x-1$ is a factor of the function.

Do synthetic division to find the quotient

$1$ $1$ $-7$ $2$ $4$

$1$ $-6$ $-4$

_____________________

$1$ $-6$ $-4$ $0$

We get remainder 0 and quotient as,

$x^{2} -(6\times x)-4$

By using Quadratic Formula;

$x=\frac{-b\pm\sqrt{b^{2}-4ac } }{2a}$

Plug 'a' , 'b' and 'c' value from $x^{2} -(6\times x)-4$ equation,

$x=\frac{-(-6)\pm\sqrt{-6^{2}-(4\times1\times -4 )} }{2\times1}$

$x=\frac{6\pm\sqrt{36+16 } }{2}$

$x=\frac{6\pm\sqrt{52} }{2}$

$x=3+\sqrt{13}$ and $x=3-\sqrt{13}$

The values of 'x' are $1$ , $3+\sqrt{13}$ and $3-\sqrt{13}$

So the Factored form is

$f(x)=(x-1)(x-3-\sqrt{13} )(x-3+\sqrt{13} )$

7 0

3 years ago

25 points. Similarity in triangles

Helen [10]

◆ Triangles ◆

Heya !

Check the attachment.
Hope it helps you ;)

3 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Csqrt%7B89" id="TexFormula1" title="\sqrt{89" alt="\sqrt{89" align="absmiddle" class="latex-

sammy [17]

rad 89 = 9.43398

bcuz: 9.43398^2 = 88.9 which rounds to 89

4 0

3 years ago

Read 2 more answers